[Remoting Android] Log app version for telemetry

remoting/base/chromoting_event.cc

Index: remoting/base/chromoting_event.cc
diff --git a/remoting/base/chromoting_event.cc b/remoting/base/chromoting_event.cc
index e7a02eb810ad0a7490e10ab96be9776118973737..939e04fac6ef1147ec2b361d603853c40d2ae587 100644
--- a/remoting/base/chromoting_event.cc
+++ b/remoting/base/chromoting_event.cc
@@ -4,10 +4,12 @@
 
 #include "remoting/base/chromoting_event.h"
 
+#include "base/strings/stringize_macros.h"
 #include "base/sys_info.h"
 
 namespace remoting {
 
+const char ChromotingEvent::kWebAppVersionKey[] = "webapp_version";
 const char ChromotingEvent::kCaptureLatencyKey[] = "capture_latency";
 const char ChromotingEvent::kConnectionErrorKey[] = "connection_error";
 const char ChromotingEvent::kCpuKey[] = "cpu";
@@ -82,7 +84,7 @@ void ChromotingEvent::SetDouble(const std::string& key, double value) {
 void ChromotingEvent::AddSystemInfo() {
   SetString(kCpuKey, base::SysInfo::OperatingSystemArchitecture());
   SetString(kOsVersionKey, base::SysInfo::OperatingSystemVersion());
-  std::string osName = base::SysInfo::OperatingSystemName();

[Yuwei, 2016/10/13 19:06:47]

osName is no longer used. Probably forgot to remove this line.

+  SetString(kWebAppVersionKey, STRINGIZE(VERSION));
 #if defined(OS_LINUX)
   Os os = Os::CHROMOTING_LINUX;
 #elif defined(OS_CHROMEOS)